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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.springframework.security.config.annotation.web.messaging</a></div>
<h2 title="Class MessageSecurityMetadataSourceRegistry" class="title">Class MessageSecurityMetadataSourceRegistry</h2>
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<li>java.lang.Object</li>
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<pre>public class <span class="typeNameLabel">MessageSecurityMetadataSourceRegistry</span>
extends java.lang.Object</pre>
<div class="block">Allows mapping security constraints using <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a> to the security
expressions.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>4.0</dd>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></span></code></th>
<td class="colLast">
<div class="block">Represents the security constraint to be applied to the <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a>
instances.</div>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#%3Cinit%3E()">MessageSecurityMetadataSourceRegistry</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#anyMessage()">anyMessage</a></span>()</code></th>
<td class="colLast">
<div class="block">Maps any <code>Message</code> to a security expression.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#containsMapping()">containsMapping</a></span>()</code></th>
<td class="colLast">
<div class="block">Allows determining if a mapping was added.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>protected <a href="../../../../messaging/access/intercept/MessageSecurityMetadataSource.html" title="interface in org.springframework.security.messaging.access.intercept">MessageSecurityMetadataSource</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#createMetadataSource()">createMetadataSource</a></span>()</code></th>
<td class="colLast">
<div class="block">Allows subclasses to create creating a <a href="../../../../messaging/access/intercept/MessageSecurityMetadataSource.html" title="interface in org.springframework.security.messaging.access.intercept"><code>MessageSecurityMetadataSource</code></a>.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#expressionHandler(org.springframework.security.access.expression.SecurityExpressionHandler)">expressionHandler</a></span>&#8203;(<a href="../../../../access/expression/SecurityExpressionHandler.html" title="interface in org.springframework.security.access.expression">SecurityExpressionHandler</a>&lt;org.springframework.messaging.Message&lt;java.lang.Object&gt;&gt;&nbsp;expressionHandler)</code></th>
<td class="colLast">
<div class="block">The <a href="../../../../access/expression/SecurityExpressionHandler.html" title="interface in org.springframework.security.access.expression"><code>SecurityExpressionHandler</code></a> to be used.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#isSimpDestPathMatcherConfigured()">isSimpDestPathMatcherConfigured</a></span>()</code></th>
<td class="colLast">
<div class="block">Determines if the <a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a> has been explicitly
set.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#matchers(org.springframework.security.messaging.util.matcher.MessageMatcher...)">matchers</a></span>&#8203;(<a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher">MessageMatcher</a>&lt;?&gt;...&nbsp;matchers)</code></th>
<td class="colLast">
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a> instances to a security expression.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#nullDestMatcher()">nullDestMatcher</a></span>()</code></th>
<td class="colLast">
<div class="block">Maps any <code>Message</code> that has a null SimpMessageHeaderAccessor destination
header (i.e.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#simpDestMatchers(java.lang.String...)">simpDestMatchers</a></span>&#8203;(java.lang.String...&nbsp;patterns)</code></th>
<td class="colLast">
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances without
regard to the <code>SimpMessageType</code>.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)">simpDestPathMatcher</a></span>&#8203;(org.springframework.util.PathMatcher&nbsp;pathMatcher)</code></th>
<td class="colLast">
<div class="block">The <code>PathMatcher</code> to be used with the
<a href="MessageSecurityMetadataSourceRegistry.html#simpDestMatchers(java.lang.String...)"><code>simpDestMatchers(String...)</code></a>.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#simpMessageDestMatchers(java.lang.String...)">simpMessageDestMatchers</a></span>&#8203;(java.lang.String...&nbsp;patterns)</code></th>
<td class="colLast">
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances that match
on <code>SimpMessageType.MESSAGE</code>.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#simpSubscribeDestMatchers(java.lang.String...)">simpSubscribeDestMatchers</a></span>&#8203;(java.lang.String...&nbsp;patterns)</code></th>
<td class="colLast">
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances that match
on <code>SimpMessageType.SUBSCRIBE</code>.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MessageSecurityMetadataSourceRegistry.html#simpTypeMatchers(org.springframework.messaging.simp.SimpMessageType...)">simpTypeMatchers</a></span>&#8203;(org.springframework.messaging.simp.SimpMessageType...&nbsp;typesToMatch)</code></th>
<td class="colLast">
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>MessageSecurityMetadataSourceRegistry</h4>
<pre>public&nbsp;MessageSecurityMetadataSourceRegistry()</pre>
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<h4>anyMessage</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a>&nbsp;anyMessage()</pre>
<div class="block">Maps any <code>Message</code> to a security expression.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Expression to associate</dd>
</dl>
</li>
</ul>
<a id="nullDestMatcher()">

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<h4>nullDestMatcher</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a>&nbsp;nullDestMatcher()</pre>
<div class="block">Maps any <code>Message</code> that has a null SimpMessageHeaderAccessor destination
header (i.e. CONNECT, CONNECT_ACK, HEARTBEAT, UNSUBSCRIBE, DISCONNECT,
DISCONNECT_ACK, OTHER)</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Expression to associate</dd>
</dl>
</li>
</ul>
<a id="simpTypeMatchers(org.springframework.messaging.simp.SimpMessageType...)">

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<h4>simpTypeMatchers</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a>&nbsp;simpTypeMatchers&#8203;(org.springframework.messaging.simp.SimpMessageType...&nbsp;typesToMatch)</pre>
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>typesToMatch</code> - the <code>SimpMessageType</code> instance to match on</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging"><code>MessageSecurityMetadataSourceRegistry.Constraint</code></a> associated to the matchers.</dd>
</dl>
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<h4>simpDestMatchers</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a>&nbsp;simpDestMatchers&#8203;(java.lang.String...&nbsp;patterns)</pre>
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances without
regard to the <code>SimpMessageType</code>. If no destination is found on the Message,
then the Matcher returns false.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>patterns</code> - the patterns to create
<a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a>
from. Uses
<a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a> .</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging"><code>MessageSecurityMetadataSourceRegistry.Constraint</code></a> that is associated to the <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a></dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a></dd>
</dl>
</li>
</ul>
<a id="simpMessageDestMatchers(java.lang.String...)">

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<h4>simpMessageDestMatchers</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a>&nbsp;simpMessageDestMatchers&#8203;(java.lang.String...&nbsp;patterns)</pre>
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances that match
on <code>SimpMessageType.MESSAGE</code>. If no destination is found on the Message, then
the Matcher returns false.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>patterns</code> - the patterns to create
<a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a>
from. Uses
<a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging"><code>MessageSecurityMetadataSourceRegistry.Constraint</code></a> that is associated to the <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a></dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a></dd>
</dl>
</li>
</ul>
<a id="simpSubscribeDestMatchers(java.lang.String...)">

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<h4>simpSubscribeDestMatchers</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a>&nbsp;simpSubscribeDestMatchers&#8203;(java.lang.String...&nbsp;patterns)</pre>
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a> instances that match
on <code>SimpMessageType.SUBSCRIBE</code>. If no destination is found on the Message,
then the Matcher returns false.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>patterns</code> - the patterns to create
<a href="../../../../messaging/util/matcher/SimpDestinationMessageMatcher.html" title="class in org.springframework.security.messaging.util.matcher"><code>SimpDestinationMessageMatcher</code></a>
from. Uses
<a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging"><code>MessageSecurityMetadataSourceRegistry.Constraint</code></a> that is associated to the <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a></dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a></dd>
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<a id="simpDestPathMatcher(org.springframework.util.PathMatcher)">

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<h4>simpDestPathMatcher</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry</a>&nbsp;simpDestPathMatcher&#8203;(org.springframework.util.PathMatcher&nbsp;pathMatcher)</pre>
<div class="block">The <code>PathMatcher</code> to be used with the
<a href="MessageSecurityMetadataSourceRegistry.html#simpDestMatchers(java.lang.String...)"><code>simpDestMatchers(String...)</code></a>. The
default is to use the default constructor of <code>AntPathMatcher</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pathMatcher</code> - the <code>PathMatcher</code> to use. Cannot be null.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <a href="MessageSecurityMetadataSourceRegistry.html" title="class in org.springframework.security.config.annotation.web.messaging"><code>MessageSecurityMetadataSourceRegistry</code></a> for further
customization.</dd>
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<a id="isSimpDestPathMatcherConfigured()">

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<h4>isSimpDestPathMatcherConfigured</h4>
<pre class="methodSignature">protected&nbsp;boolean&nbsp;isSimpDestPathMatcherConfigured()</pre>
<div class="block">Determines if the <a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a> has been explicitly
set.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if <a href="MessageSecurityMetadataSourceRegistry.html#simpDestPathMatcher(org.springframework.util.PathMatcher)"><code>simpDestPathMatcher(PathMatcher)</code></a> has been explicitly set,
else false.</dd>
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<h4>matchers</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry.Constraint</a>&nbsp;matchers&#8203;(<a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher">MessageMatcher</a>&lt;?&gt;...&nbsp;matchers)</pre>
<div class="block">Maps a <code>List</code> of <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a> instances to a security expression.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matchers</code> - the <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a> instances to map.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The <a href="MessageSecurityMetadataSourceRegistry.Constraint.html" title="class in org.springframework.security.config.annotation.web.messaging"><code>MessageSecurityMetadataSourceRegistry.Constraint</code></a> that is associated to the <a href="../../../../messaging/util/matcher/MessageMatcher.html" title="interface in org.springframework.security.messaging.util.matcher"><code>MessageMatcher</code></a>
instances</dd>
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<h4>expressionHandler</h4>
<pre class="methodSignature">public&nbsp;<a href="MessageSecurityMetadataSourceRegistry.html" title="class in org.springframework.security.config.annotation.web.messaging">MessageSecurityMetadataSourceRegistry</a>&nbsp;expressionHandler&#8203;(<a href="../../../../access/expression/SecurityExpressionHandler.html" title="interface in org.springframework.security.access.expression">SecurityExpressionHandler</a>&lt;org.springframework.messaging.Message&lt;java.lang.Object&gt;&gt;&nbsp;expressionHandler)</pre>
<div class="block">The <a href="../../../../access/expression/SecurityExpressionHandler.html" title="interface in org.springframework.security.access.expression"><code>SecurityExpressionHandler</code></a> to be used. The default is to use
<a href="../../../../messaging/access/expression/DefaultMessageSecurityExpressionHandler.html" title="class in org.springframework.security.messaging.access.expression"><code>DefaultMessageSecurityExpressionHandler</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expressionHandler</code> - the <a href="../../../../access/expression/SecurityExpressionHandler.html" title="interface in org.springframework.security.access.expression"><code>SecurityExpressionHandler</code></a> to use. Cannot be
null.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <a href="MessageSecurityMetadataSourceRegistry.html" title="class in org.springframework.security.config.annotation.web.messaging"><code>MessageSecurityMetadataSourceRegistry</code></a> for further
customization.</dd>
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<h4>createMetadataSource</h4>
<pre class="methodSignature">protected&nbsp;<a href="../../../../messaging/access/intercept/MessageSecurityMetadataSource.html" title="interface in org.springframework.security.messaging.access.intercept">MessageSecurityMetadataSource</a>&nbsp;createMetadataSource()</pre>
<div class="block">Allows subclasses to create creating a <a href="../../../../messaging/access/intercept/MessageSecurityMetadataSource.html" title="interface in org.springframework.security.messaging.access.intercept"><code>MessageSecurityMetadataSource</code></a>.
<p>
This is not exposed so as not to confuse users of the API, which should never
invoke this method.
</p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <a href="../../../../messaging/access/intercept/MessageSecurityMetadataSource.html" title="interface in org.springframework.security.messaging.access.intercept"><code>MessageSecurityMetadataSource</code></a> to use</dd>
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<h4>containsMapping</h4>
<pre class="methodSignature">protected&nbsp;boolean&nbsp;containsMapping()</pre>
<div class="block">Allows determining if a mapping was added.
<p>
This is not exposed so as not to confuse users of the API, which should never need
to invoke this method.
</p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if a mapping was added, else false</dd>
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